Question

How do you simplify `\frac { x - 2} { x + 4} \cdot \frac { 9x + 36} { 5x - 10}`?

Answer 1

`9/2`

Explanation:

`((x-2)(9x+36))/((x+4)(5x-10))`

`=(9(x+4)(x-2))/(2(x+4)(x-2)`

`=9/2`